The famous "Turing test" of computer science comes from a 1950 paper written by the British computer scientist (and war hero) Alan Turing. There are many variants, but perhaps the most common involves a human asking questions of "someone" behind a screen. The test is: Can the human consistently determine if the answerer is a human or a machine?

A new paper reverses this situation and asks: Can a large language model (LLM) ask questions that reveal if the hidden respondent is a human or another LLM? The work, by four French scientists from the Unit of Artificial Intelligence of PITOR at Paris Cité University, is published in the journal Computers in Human Behavior Reports.

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